Gas-stove.



Nuo. 663,8II Patented Dec. Il, |900.

T. M. DUDGEN.

GAS STOVE.

(Application sled Apr. 21, woo

(No Model.) 2 Sheets-Shut l.

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` T. M. DunGE-ou.

GAS sovE. {Application filed Apr. 21, 1900.

2 Sheets-Sheet 2 (No Model.)

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Partnr rrrcna THOMAS M. DUDGEON, OF GRAFTON, PENNSYLVANIA, ASSIGNOR TO THE PITTSBURG STOVE AND RANGE COMPANY, OF PITTSBURG, PENNSYL- VANIA.

SPECIFICATION forming part of Lettera Patent No. 663,811, dated December 11, 1900- Application tiled April 2l, 1900. Serial No. 13 ,687. (No model.)

To all whom it may concern:

Beit known that I, THOMAS M. DUDGEON, a citizen of the United States, residing at Orafton, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Gas-Stoves, of which improvements the following is a specification.

The invention described herein relates to certain improvements in gas-stoves, and has for one object a construction whereinprovision is made for the introduction of air above the point of combustion of the fuel and the regulation of the outlet for the products of combustion in accordance with the rate of combustion; andlit is a further object of the invention to provide for the regulation of the gas and air supply to the burner.

The invention is hereinafter more fully described and claimed.

In the accompanying drawings, forming a part .of this speciiication, Figure l is a front elevation of my improved gas-stove. Eig. 2 is a sectional elevation, the plane of section beingindicated by the line II Il, Fig. 1. Fig. 3 shows in perspective the several parts of the gas-nozzle and mixer.

In the practice of my invention the case or shell is made substantially rectangular or of a contour corresponding to the recess or opening into which it is to be placed and' has its front side open. A supporting ledge or shelf 2 is arranged across the shell a short distance from its lower end, and the space below the shelf is closed by an apron 3, having openings therethrough Yfor the admission of air.

The back wall is made double for the formation of lines 4L, extending up from the airspace belowgthe shelf, and provided with outlets 5 above the log or burner 6, which is supported on the shelf 2 and just below the reverberating ledge 7 projecting from the back.

on the damper. The rod is provided on its outer end with a head 12, whereby it may be rotated, and with a toothed wheel 13, adapted to be engaged by a pawl 14; on the shell 1, whereby the damper may be held in any desired position. The air iowing from the room through the space below the shelf or ledge 2 and up through the flue or passage 4 is heated to some extent, and passing through the outlets 5 is highly heated by heat from the burner. The reverberating ledge 7 will deflect the heated air and cause it to flow out into the room.

The gas-supply pipe is provided with aregulating-valve 15, having an operating-stem projecting through the apron 3. The nozzle 16 is provided at its upper end with two series of perforations, the holes of each series differing in size, as shown, andthe two series of perforations are so arranged that the holes of the same size in each series will be diametrically opposite. A disk 17, having two holes 18 corresponding in size to the largest hole in the end of the nozzle arranged diametricallyopposite each other, is rotatably mounted on the end of the nozzle, so that by rotating said disk the holes 18 maybe brought simultaneously into line with holes in the two series in the nozzle, at the same time closing all the other holes. The air and gas mixing chamber is formed by a socket 19, having one end constructed to lit the nozzle 16 and having portions of its side wall cut away for the admission of air. This socket extends above the nozzle and is externally threaded, so as to be secured in a threaded opening in the log or burner 6. In order to regulate the flow of air into the mixing-chamber, a sleeve 2O is movably mounted on the socket, so that by slid ing the sleeve along the socket the openings in the sides of the socket may be more or less closed.

No claim is made herein to the forin or construction of mechanism employed for operating the valve. Such construction will form the subject-matter of an application to be filed.`

I claim herein as my invention-- In a' gas-stove, the combination of an inclosing shell or box having an open front, a

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su pporting ledge or shelf arranged at a suibproducts of combustion, substantially as set able height to form an air-chamber below ib, forth. Io a burner resting on the shelf, a flue extend- In testimony whereof I have hereunto set ing from Jche air-chamber under the shelf or my hand. ledge up back of the burner having outlets `THOMAS M. DUDGEON. above the burner, a reverberating ledge ar- Witnesses:

ranged above Ehe flue, outlets and a valved DARWIN S. WOLCOTT,

opening above the ledge for the escape of F. E. GAITHER. 

